# encoding: utf-8
import socket
import struct
import sys
import time

NTP_SERVER = '0.uk.pool.ntp.org'
TIME1970 = 2208988800l

def sntp_client():
    client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    data = '\x1b'+47*'\0'
    client.sendto(data.encode('utf-8'), (NTP_SERVER, 123))
    data,address = client.recvfrom(1024)
    if data:
        print 'Response received from: ', address
    t = struct.unpack('!12I',data)[10]
    t -= TIME1970
    print ('\tTime = %s ' % time.ctime(t))
if __name__ == '__main__':
    sntp_client()
